Port Authority police are looking for Roger Cunningham, 52, who they say was taken into custody Thursday evening and then left UPMC Mercy. Duquesne University issued a campus alert because of the situation.

DELAYS OUTSIDE OUR STUDIO. AND THE REST OF YOUR DRIVE TIMES. WE GO OUT TO BOB HAZEN. Reporter: MAN FACING CHARGES FOR ASSAULT AND RESISTING ARREST ESCAPED FROM MERCY HOSPITAL LAST NIGHT. AND RIGHT NOW HE IS STILL ON THE STREET. WE SAW POLICE SEARCHING EVERYWHERE FOR THIS MAN OVERNIGHT. LOOKING UNDER BRIDGES AND DOWN STREETS, SURROUNDING MERCY HOSPITAL AND DUQUESNE UNIVERSITY WHICH IS OF COURSE RIGHT NEXT DOOR. THE UNIVERSITY ALSO SEPTEMBER O SENT OUT AN ALERT TO STUDENTS. IT'S 52-YEAR-OLD ROGER CUNNINGHAM. HE FOUGHT BACK AND WAS ARMED WITH A PAIR OF SCISSORS. THEY WROUGHT HIM TO MERCY AFTER HE COMPLAINED ABOUT BACK PAIN. AND HE ALSO THREATENED SUICIDE. P SO PORT AUTHORITY TURNED HIM OVER TO HOSPITAL SECURITY SO THEY COULD WATCH HIM OVERNIGHT. INSTEAD, POLICE SAY CUNNINGHAM ESCAPED, RUNNING AWAY FROM THE HOSPITAL. AND HE'S NOT BEEN SEEN SINCE. HERE IS THE DESCRIPTION OF HIM, CUNNINGHAM SAID TO BE A WHITE MAN ABOUT 5'11", HEAVY SET, HE MAY BE WEARING DARK PANTS AND DARK SHIRT. POLICE DO SAY HE WAS NOT WEARING HANDCUFFS WHEN HE ESCAPED FROM THE HOSPITAL AND THEY'RE ASKING ANYONE WITH INFORMATION ABOUT